Roller adjusting mechanism for rotary printing presses



Jan. 20, 1953 J. R. BAUNGARTNER ROLLER ADJUSTING MECHANISM FOR ROTARY. PRNTING PRESSES 5 Sheets-Sheet l Filed Dec. 26, 1950 MUT-uml Jan. 20, 1953 J. R. BAUMGARTNER 2,625,878

ROLLER ADJUSTING MECHANISM FOR ROTARY PRINTING PRESSES Filed Dec.. 26, 1950 3 Sheets-Sheet 2 lo 69 @e 5.8

IIIIIl 128 l l l' I: i h' A INVENTOR.

Jan. 20, 1953 J. R. BAUMGARTNER 2,625,878

ROLLER ADJUSTING MECHANISM FOR'ROTARY PRINTING PRESSES 3 Sheefs-Sheet 5 Patented Jan. 20, 1953 UNITED STATES PATENT OFFICE ROLLER ADJUSTING MECHANISM FOR ROTARY PRINTING PRESSES John R. Baumgartner, Milwaukee, Wis.

Application December 26, 1950, Serial N o. 202,710

3 Claims.

The invention relates to printing presses and more particularly to mechanism for adjustably positioning those rolls of the press that contact with or are associated with the plate cylinder of the press.

The general object of the invention is to provide a simple form of adjusting mechanism that may be used for adjusting either or both ends of such rolls as the impression cylinder and the inking roll relative to the plate cylinder of the press and also the fountain roll relative to the inking roll.

A .further object of the invention is to provide adjusting means for adjusting the fountain roll and the inking roll relative to each other and both of these rolls relative to the plate cylinder of the press.

The invention further consists in the several features hereinafter described and more particularly defined by claims at the conclusion hereof.

In the drawings:

Fig. 1 is a side elevation view of a printing press equipped with mechanism embodying the invention;

Fig. 2 is an end elevation view of the press looking in the direction of theV arrows 2-2 in Fig. 1, parts being broken away;

Fig. 3 is-a plan view of the press, parts being broken away;

Fig. 4 is a detailed vertical sectional view on the line 4-4 of Fig. 3;

Fig. 5 is a detailed vertical sectional view on the line 5-5 of Fig. 4;y

taken taken Fig'.A 6 is a Adetailed vertical sectional view taken on the line 6 6 of Fig. 4;

Fig. 7 is a detailed vertical sectional view taken on the line 1-1 of Fig. 4;

Fig. 8 is a detailed horizontal sectional view taken on the line 8-8 of Fig. 4.

Referring to the drawings, the numeral I designates the frame of the press, II the plate cylinder suitably journalled in said press, I2 the inking roll, I3 the fountain roll, and I4 the impression cylinder or roll. The plate cylinder II is suitably driven from a drive shaft I through gearing indicated at I5 in Fig. 3. The rolls I2 and I3 are connected together by intermeshing gears Il. The rolls I2 and I4 are both driven from a drive shaft I8 by an endless chain I9 running over a sprocket 28 on the shaft I8, a sprocket 2| on the shaft for the roll I2, a sprocket 22 on the shaft for the roll I4, idler sprocket I8a and I8b and a tensioning sprocket 23 carried in the arms 24 of an automatic tensioning device including a shaft 25 carrying said arms and a rod 2 2B connected with the arms and acted on by a spring 26a to urge the arms 24 and sprocket 23 to a chain tensioning position. The fountain roll I3 dips into an ink supply fountain 21.

The extended shaft ends 28 of the inkjng roll I2 are each journalled in a bearing 29 mounted in a block 30 slidably mounted in guideways3l secured to the side portions of the frame I0. The extended shaft ends 32 of the impression cylinder I4 are each similarly journalled in a bearing 33 mounted in a block 34 slidably mounted on the sides of a guide slot 36'on the frame I0.

Similar means are provided in each instance for simultaneously or individually adjusting the blocks 30 to bring the roll I2 into proper registry with the plate cylinder I I and for simultaneously or individually adjusting the blocks 34 to bring the roll I4 into proper registry or alinement with said plate cylinder. Details of these similar means have been shown more particularly in connection with the roll I2 though, as noted, similar means are used in connection with the roll I4.

Referring to Figs. 3, 4, and 8, each slide block 30 has an angled end portion 31 provided with a threaded bore 38 in which a threaded adjust-V of the frame I0 land having a hand wheel 48' keyed to its other end. The worm 44 is keyed to the outer end of a sleeve shaft 49 surrounding a portion of the shaft 45 and journalled in a bearing 50 in the other side of the frame I0 and having a hand wheel portion 5I carrying an outboard bearing 52 for the shaft 46.

With this construction rotation of wheel 48 will, through the gears 45 and 42, turn the feed screw 39 in the block 30 at the farther side of the machine as viewed in Fig. 3, and rotation of the wheel 5I will, through the gears 44 and 42, turn the feed screw 39 in the block 30 at the nearer side of the machine and, depending upon which direction the screwsI 39 are turned, the blocks 38 will be moved toward or away from the plate cylinder shaft extensions so as to bring the inking roll into the desired alinement with the plate cylinder II. Also both of the hand tate relative.l thereto, which feed screw hasthreaded engagement with the side portion of the frame of the machine, so that turning of said feed screw will raise or lower the block 34 to bring the cylinder or roll I4 into proper registry with the plate cylinder I I. For turning the screws- 54, each feed screw 54 has a worm wheel 55 slidably keyed thereto, and the mechanism for turning these wheels 55 is identical with: that justdescribed and shown in Fig. 5 for turning the worm wheels 42 so that details of the meshing worms have not been shown, but similar numerals fjor similar parts have been applied to these parts in Fig. 2, to wit: the adjusting shaft 43v with its. hand wheel 43 and which shaft carries` a wormwheel,l similar to the worm wheel 45, and meshing with the worm gear 55 on the feed screw 54 on the opposite side of the machine fromthat shown in Fig. l, the sleeve adjusting shaft 49 with its hand wheel 5I, and which shaft carries` the worm wheel 44 meshing with the worm gear- 55 shown in full in Fig. 1 and the locking screw 53 for securing the wheels 48 and 5I togetherv as a unit. The turning of the screws 54l either singly or together through the adjusting mechanism above described acts to adjust either end or both ends of the roll I4 relative to the plate cylinder I I in the same way that the turning of the screws 39 act to adjust the inking roll I2 relative to said plate cylinder.

As the inking roll I2 receives its ink from the fountain roll I3, this roll must be capable of adjustmentso that it will cooperate with the roll I2 in any position in which it has been adjusted relative to the cylinder Il, and for this purpose adjusting mechanism similar to the other adjusting mechanisms above described have been pro-- vided for'this roll I3.

Referring to Figs. 4 to y8,l eachl shaft exten sion 56 for the roll I3 is journalled in a bearing 5'I mounted in a supporting block 5B slidablyl mounted in the guides 3l between theY block 36 andthe side, portion of the frame Iil adjacent this block 30. Each block 58 has a clearance opening 59 for the outer end of the screw139 and is normally urged toward the angled end 3l of the block 33 by a springr 60 interposed between the headed end 6i of a bolt 32 and said end 37, said bolt, 62 being anchored to the block 58 and slidably mounted in said end Si?,r as shown in Fig. 4;v A clearance opening 8'3 in each block 34' for the extension 56, as shown in Fig. 6, allows for movement of the block` 5S relative to its associated block 3B. For adjustably positioning each block 58 relative to the block 35 at the samey side of the machine, a feed screw 64 is mounted ina threaded bore 65 in the, end 31 of the block 3i] which under the. action of spring 60. limits4 the. movementof the block 58 toward the left as viewedy inFig. 4 and which under the screwing-in movement of said screw 64 acts on the block, 58 to move it to the right in said figure. Thus the. individual adjustment ofeach screw 54 individually adjusts the ends of the roll I3 relative tov the-roll; I2.. The turning of, each screw 64'is donek manuallyl through mechanismy similarv to that used in connection with the associated block 30. Each screw 64 has a slidably keyed connection at 64a. with a shaft portion 66 which is journalled in bearings in the blocks 4I and has a worm wheel 6l pinned thereto and mounted between said blocks 4I.

Each worm wheel 61 meshes with a worm associated with turning mechanism similar to that shown in detail in Fig. 5l and similarlyfnumeralled so that in Fig. 4 the worm 6l meshes with the worm 44 on the sleeve shaft 49 while a worm 45' keyed to the adjusting shaft 46 of this mechani'sm meshes. with the other worm 61 on the opposite feed screw E4. The shafts 46 and 49 have theA hand wheels 48 and 5I mounted thereon with the associated locking pin 53 so that the turning of'v either' hand wheel or the joint turning of both handwheels will eect the desired adjustment of the fountain roll I3 relative to the inking roll I2, and this adjustment can be effected in any adjusted position of the block 3U relative to the plate cylinder II sinceY the sliding key connection permits relative movement of the. screw 64 and its associated shaft 66.

In eachl instance in order to facilitate bringing thel rolls back to an initial point of predetermined adjustment I have made the bearing 5i! angularly adjustable in the frame I0 and provided.

it with a stop extension 58..which may be moved to different angular positions relativeY to: the.'

shafts. 43. and 49 and locked in positionA in the frame III by a set screw 69 which is threaded into the frame IU and engages the. outer surface of the bearing 53. stop member 58 is adapted to be engaged by a pin 'I0 carriedV byv the hand wheel 5I. mechanism is shown more particularly` in oonnection with the adjustments forv the inking.Y roll I2V and the fountain rolll I3;

From the above it will be noted that I' have;

provided a simple form of adjusting mechanism associated with the impression lroll, the inking roll, and the fo-untainroll of a. press whereby the ends of these rolls may be individually adjusted or both ends. of these rolls moved together asa unit4 for the purpose of bringing thefimpression. and inking (or ink distributing) rolls into proper registry o-r contact with the plate cylinder II and also bringing the fountain roll I3 in proper transfer Contact with the inking roll |21.

I desire it to be understood that thisY inventionis not to. be, limited to any particular form. or

arrangement of parts except in soV far. as. suchv blocks, a; manually adjustable shaft having ag geared connection with one. of said feed. screws., a manually adj ustableshaft'having a geared connection with the other of said feed screws,A said; shafts being, concentrically disposed with oneshaft extendingV through a bore of the other shaft, said shafts having adjacently disposed hand wheel extensions at the same side of the` frame for individually turning each of said4 shafts, and means for locking both of said handwheels; together for simultaneously turning said,

shafts byl either` hand wheeler both hand wheels..`

This angularly adjustable 2. The structure as defined in claim 1 in which the locking means comprises a manually operable set screw carried by one o-f said hand wheels and engageable with the other.

3. In a printing press, the combination of a frame, a plate cylinder journalled in the frame, an ink distributing roll cooperating with said plate cylinder, bearing blocks for said roll slidably mounted on the frame, a fountain roll cooperating with said inking roll, bearing blocks for said fountain roll also slidably mounted on said frame adjacent the bearing blocks for the inking roll, means for individually or simultaneously moving the bearing blocks for the inking roll relative to said plate cylinder to bring said inking roll into cooperative relation with said plate cylinder, and means for individually and simultaneously moving the bearing blocks for the fountain roll relative to the bearing blocks for the inking roll to bring said fountain roll into cooperative contact with said inking roll, each of said means comprising a feed screw for moving each bearing block, and a manually adjustable rotary shaft having geared connection with said feed screw whereby both of the feed screws for one set of bearing REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,642,782 Langston Sept. 20, 1927 1,938,859 Potdevin Dec. 12, 1933 2,076,241 Luehrs Apr. 6, 1937 2,123,343 Bemis et al Aug. 30, 1938 2,301,299 Luehrs Nov. 10, 1942 2,405,795 Luehrs Aug. 13, 1946 

